#3D66D9#3D66D9

#3D66D9 is a mid, vivid blue. Relative luminance 0.155; OKLCH L 54.6% C 0.182 H 265.8°. Best body text is #FFFFFF at 5.12:1 contrast (WCAG AA passes).

Color values

HEX	#3D66D9
RGB	rgb(61, 102, 217)
HSL	hsl(224, 67%, 55%)
HSV	hsv(224, 72%, 85%)
CMYK	cmyk(71.9%, 53%, 0%, 14.9%)
CIE-LAB	lab(46.31, 24.76, -63.19)
CIE-LCH	lch(46.31, 67.87, 291.39°)
OKLab	oklab(54.62% -0.0134 -0.1819)
OKLCH	oklch(54.62% 0.182 265.8)
XYZ	xyz(19.1958, 15.5026, 67.6128)
Luminance	0.1550 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3D66D9 #D9B03D

analogous

#3DB4D9 #3D66D9 #623DD9

triadic

#3D66D9 #D93D66 #66D93D

tetradic

#3D66D9 #D93DB4 #D9B03D #3DD962

square

#3D66D9 #D93DB4 #D9B03D #3DD962

split-complementary

#3D66D9 #D9623D #B4D93D

monochromatic

#193582 #244AB5 #3D66D9 #708EE3 #A3B7ED

Accessibility & contrast

On white

5.12

#3D66D9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.10

#3D66D9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3D66D9

5.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3D66D9	#FFFFFF	#000000	##FFFFFF
##3D66D9	1.00	5.12	4.10	5.12
#FFFFFF	5.12	1.00	21.00	1.00
#000000	4.10	21.00	1.00	21.00
##FFFFFF	5.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0F75DD

Deuteranopia (green-blind)

#0067D7

Tritanopia (blue-blind)

#008296

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #3d66d9;
/* rgb */ color: rgb(61, 102, 217);
/* oklch */ color: oklch(54.6% 0.182 265.8);

Tailwind

colors: {
  custom: {
    50: '#8691e5',
    500: '#3d66d9',
    950: '#000000',
  },
}

SCSS

$custom: #3d66d9;
$custom-light: #8691e5;
$custom-dark: #000000;

JSON

{
  "hex": "#3d66d9",
  "rgb": {
    "r": 61,
    "g": 102,
    "b": 217
  },
  "hsl": {
    "h": 224.231,
    "s": 67.241,
    "l": 54.51
  },
  "oklch": {
    "l": 0.54616,
    "c": 0.18237,
    "h": 265.8
  },
  "luminance": 0.15505
}

Semantic roles & 50–950 ramp

primary

#3D66D9

secondary

#DAC998

accent

#BD3EEA

background

#F9F8FE

surface

#F1F0FC

border

#CBCBD5

text

#0D0C16

muted

#7E7D84

Preview Lab

Preview with #3D66D9

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →